JP2002194798A - Private part washing nozzle and the private parts washing equipment therewith for human body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide private part washing nozzle for human body providing a feeling of ampleness and a feeling of stimulus. SOLUTION: This private part washing nozzle for human body is equipped with a supply channel and jets washing water to the private part of human body and is formed in the supply channel, has an orifice portion with the exit directed to the private part of the human body, an air intake provided around the orifice portion, a throat portion provided on a locus connecting the exit of orifice portion to the private part of human body, and further when the cross sectional area is S1 for the orifice portion and S2 for the throat portion, a ratio in area S2/S1 is 2.7 to 4.4 and a distance L1 from an outlet of the orifice portion to an inlet of the throat portion is set from 2.0 to 4.0 mm as the features of this nozzle.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a human body part cleaning nozzle used for a sanitary washing device for cleaning a human body part, and a human body part cleaning apparatus provided with the same.

[0002]

2. Description of the Related Art A human body cleaning nozzle disclosed in Japanese Patent Publication No. 58-9688 has been known. FIG. 13 is a cross-sectional view of a conventional human body local cleaning nozzle of this type. In FIG. 1, the present nozzle 1 includes a first nozzle 2 and a nozzle body 3.

When a water pressure is applied to the upstream of the first nozzle 2 of the main nozzle 1 having such a configuration, the washing water is jetted from the first nozzle 2, passes through the cavity 4 provided in the nozzle body 3, and flows about halfway. The direction of the 90-degree water flow is bent and injected toward the local part from the injection port 5. At this time, since the air suction port 7 is provided near the injection port 6 of the first nozzle 2, the hot water sucks air and is injected from the injection port in a state where air bubbles are mixed. As a result, the area of the washing water that collides with the local part increases, and the human body can enjoy the washing with plenty of feeling.

[0004]

With the nozzle for cleaning the local part of the human body having the conventional structure, although the human body can certainly enjoy a plenty of cleaning, it is also true that the human body lacks irritation.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and has as its object to provide a human body part cleaning nozzle which provides a sufficient feeling and a stimulating feeling, and a human body part cleaning device provided with the same. And

[0006]

In order to achieve the above object, a first aspect of the present invention is a human body part cleaning nozzle which includes a water supply passage and injects cleaning water to a human body part. An orifice portion formed in the water supply channel, the outlet of which is directed to the human body portion, an air intake provided around the orifice portion, and an orifice provided on a locus connecting the outlet of the orifice portion and the human body portion. A cross-sectional area S1 of the orifice section and a cross-sectional area S2 of the throat section, and an area ratio S2 / S1 of 2.7 to 4.
4. A human body part cleaning nozzle characterized in that a distance L1 between an outlet of the orifice portion and an inlet of the throat portion is 2.0 to 4.0 mm.

According to a second aspect of the present invention, in the nozzle of the first aspect, the area ratio S2 / S1 is set to 3.2 to 3.2.
A cleaning nozzle for a local part of a human body, wherein the cleaning nozzle is 3.8.

[0008] In a third aspect of the present invention, the sectional area S1 of the orifice portion is defined as:
1.3 mm ² , the cross-sectional area S2 of the throat portion was 3.5
It is a human body local cleaning nozzle characterized by having a size of ５5.7 mm ² .

According to a fourth aspect of the present invention, in the cleaning nozzle for a local part of the human body according to the third aspect, the cross-sectional area S2 of the throat portion is defined by:
It is a human body part cleaning nozzle characterized by having a diameter of 4.2 to 4.9 mm ² .

In the conventional configuration, the cleaning water injected from the first nozzle 2 passes through the cavity 4 provided in the nozzle body 3 and loses energy when the direction of the water flow is bent about 90 degrees on the way. That is, the washing water decelerates). However, according to the human body part cleaning nozzle according to claims 1 to 4, the outlet of the orifice part is directed to the human body part, and when a constant water pressure without time-dependent fluctuation is applied upstream of the orifice part, the orifice part is cleaned. The washing water sprayed from the outlet of the vehicle collides with the local part of the human body with the sprayed water pressure without any obstacle. That is, there is no energy loss (ie, no deceleration of the washing water). Therefore, the human body can enjoy a stimulating washing.

Further, an air intake is provided around the orifice portion, and when washing water is injected from the outlet of the orifice portion, the pressure around the orifice portion becomes a negative pressure, so that air is sucked in (so-called "so-called"). , Ejector effect). According to the results of our experiments, the sectional area S1 of the orifice part and the sectional area S2 of the throat part are set, and the area ratio S2 / S1 is set to 2.
7 to 4.4 (specifically, the cross-sectional area S1 of the orifice portion is 1.3 mm ² , and the cross-sectional area S2 of the throat portion is 3.5 to 5.5.
7 mm ^2), 2-4 mm the distance L1 between the inlet of the outlet and the throat portion of the orifice portion, and when good ejector effect (average air suction quantity 1.0 (L / min) or higher)
Has been confirmed to be obtained. Also, the area ratio S2 /
S1 is 3.2 to 3.8 (specifically, the cross-sectional area S1 of the orifice portion is 1.3 mm ² , and the cross-sectional area S2 of the throat portion is
It has been confirmed that the best ejector effect (average air suction amount of 1.2 (L / min) or more) is obtained when the thickness is set to 4.2 to 4.9 mm ² ). The optimum design value in consideration of miniaturization is the cross-sectional area S of the orifice.
1 is 1.3 mm ² , and the cross-sectional area S2 of the throat portion is 4.2 m
m ² , the distance L1 between the outlet of the orifice section and the inlet of the throat section is 2 mm, and the length of the throat section is 2 mm.

The air sucked by the ejector effect disturbs the surface of the washing water jetted from the outlet of the orifice portion, and makes the washing water jetted from the throat portion thinner or thicker depending on the degree of the turbulence. . Therefore, the larger the average air suction amount, the greater the turbulence of the cleaning water, and the thinner the cleaning water becomes. We empirically believe that the turbulence of the washing water becomes large from the time when the average air suction amount becomes 1.0 (L / min), and that the turbulence of the washing water becomes conspicuous when it becomes more than that. The repetition of this thin wash water,
This causes high and low speed repetition of the washing water injected from the throat portion, and finally, the repetition of the difference in speed appears as repetition of the density of the washing water. The washing water that repeats such sparse and dense gives a full feeling to the human body particularly in a dense part. In addition, since the repetition of the density is too fast for the human body to perceive, the human body always feels as if the washing water is colliding in a dense state. Therefore, the human body can also enjoy a washing with a feeling of flapping together with the washing with the stimulating feeling.

According to a fifth aspect of the present invention, in the human body local cleaning nozzle according to any one of the first to fourth aspects, the throat portion is arranged on the same axis as the orifice portion, and the outlet is open to the atmosphere. Features.

According to the fifth aspect of the present invention, since the throat portion and the orifice portion are arranged on the same axis, the throat portion and the orifice portion can be worked from the same direction in the assembling process and the inspection process after the assembling. It is advantageous in terms of manufacturing, inspection, etc., and is excellent in mass productivity.

According to a sixth aspect of the present invention, there is provided the human body local cleaning nozzle according to any one of the first to fifth aspects, further comprising a cleaning water swirling portion for rotating the cleaning water supplied to the orifice portion around the locus as a central axis. And

According to the sixth aspect of the present invention, the supplied washing water is swirled by the washing water swirling section. The swirled washing water passes through the orifice portion and the throat portion and is diffused and sprayed in a conical shape. Therefore,
The area of the washing water colliding with the local part is increased, and the human body can enjoy a more pleasing washing.

According to a seventh aspect of the present invention, there is provided the human body local cleaning nozzle according to any one of the first to sixth aspects, further comprising a variable portion for varying an amount of air taken in from the air inlet.

[0018] According to the seventh aspect of the present invention, the variable portion changes the amount of air taken in from the air inlet. When the amount of air taken in varies,
The washing water has a large degree of turbulence and a large difference in density. Therefore, the human body can enjoy a more irritating wash.

According to an eighth aspect of the present invention, in the human body local cleaning nozzle according to the seventh aspect, the variable portion varies the amount of air taken in from the air intake at a predetermined cycle.

According to the eighth aspect of the present invention, since the amount of air taken in from the air inlet fluctuates at a predetermined cycle by the variable section, the washing water is periodically disturbed. Therefore, the density of the washing water becomes periodic, and the human body can stably enjoy the irritating washing.

According to a ninth aspect of the present invention, in the human body local cleaning nozzle according to any one of the first to eighth aspects, an orifice rotating portion for rotating the orifice portion around the locus as a center axis is provided.

According to the ninth aspect of the present invention, the orifice rotating section rotates the orifice section around the locus as the center axis. When the orifice portion rotates about the locus as the center axis, the washing water is jetted in a conical shape. Therefore, the area of the washing water colliding with the local part increases, and the human body can enjoy a more pleasing washing.

According to a tenth aspect of the present invention, there is provided the human body local cleaning nozzle according to any one of the first to ninth aspects, further comprising a cleaning water pressure varying portion for varying the pressure of the cleaning water supplied to the orifice portion at a predetermined cycle. And

According to the tenth aspect of the present invention, the pressure of the washing water supplied to the orifice portion by the washing water pressure varying portion varies at a predetermined cycle. Therefore, the cleaning water to be injected is disturbed by the forced fluctuation by the cleaning water pressure fluctuation part in addition to the natural fluctuation at the orifice part and the throat part. Therefore, the human body can enjoy a more irritating wash.

In order to achieve the above object, claim 11
A human body local cleaning device that includes a water supply channel and injects cleaning water to a human body local portion, wherein the orifice portion is formed in the water supply channel and has an outlet directed toward the human body local portion, and provided around the orifice portion. An orifice, a throat provided on a locus connecting the outlet of the orifice and the body part, and a cross-sectional area S of the orifice.
1 and the cross-sectional area S2 of the throat portion, the area ratio S2 / S1 was 2.7 to 4.4, and the distance L1 between the outlet of the orifice portion and the inlet of the throat portion was 2.0 to 4.0 mm. A human body local cleaning device provided with a human body local cleaning nozzle, characterized in that:

According to a twelfth aspect of the present invention, in the apparatus for cleaning a human body part according to the eleventh aspect, the area ratio S2 / S1 is set to 3.2 to 3.2.
It is a human body part cleaning device characterized by having 3.8.

According to a thirteenth aspect of the present invention, in the apparatus for cleaning a local part of a human body according to the eleventh aspect, a sectional area S1 of the orifice portion is provided.
1.3 mm ² , the cross-sectional area S2 of the throat portion,
A human body local cleaning device characterized in that the thickness is 3.5 to 5.7 mm ² .

According to a fourteenth aspect of the present invention, in the apparatus for cleaning a local part of a human body according to the thirteenth aspect, the cross-sectional area S2 of the throat portion is defined by:
It is a human body local cleaning device characterized by having a size of 4.2 to 4.9 mm ² .

In the conventional configuration, the washing water injected from the first nozzle 2 passes through the cavity 4 provided in the nozzle body 3 and loses energy when the direction of the water flow is bent by about 90 degrees on the way. That is, the washing water decelerates). However, according to the human body local cleaning device according to claims 11 to 14, the outlet of the orifice portion is directed to the human body local portion, and when a constant water pressure having no temporal fluctuation is applied upstream of the orifice portion, the orifice portion is cleaned. The washing water injected from the outlet of the vehicle collides with the human body part with the injected water pressure without any obstacle. That is, there is no energy loss (ie, no deceleration of the washing water). Therefore, the human body can enjoy a stimulating washing.

According to the results of our experiments, the sectional area S1 of the orifice section and the sectional area S2 of the throat section were set, and the area ratio S2 / S1 was 2.7 to 4.4 (specifically, the cutoff of the orifice section). Area S1 is 1.3 mm ² , cross-sectional area S of throat
2 is 3.5 to 5.7 mm ² ), and when the distance L1 between the outlet of the orifice portion and the inlet of the throat portion is 2 to 4 mm, a good ejector effect (average air suction amount 1.0 (L
/ Min) or more is obtained. Further, the area ratio S2 / S1 is set to 3.2 to 3.8 (specifically,
Sectional area S1 is 1.3 mm ² of the orifice, the cross-sectional area S2 of the throat portion, when the 4.2~4.9mm ^2), best ejector effect (average air suction amount 1.2
(L / min) or more is obtained. The optimum design value in the case of considering the miniaturization, the cross-sectional area S1 is 1.3 mm ² of the orifice, the cross-sectional area S2 of the throat 4.2 mm ^2, the distance between the inlet of the outlet and the throat portion of the orifice L1 2mm, Throat length 2m
m.

The air sucked by the ejector effect disturbs the surface of the washing water jetted from the outlet of the orifice portion, and makes the washing water jetted from the throat portion thinner or thicker depending on the degree of the turbulence. . Therefore, the larger the average air suction amount, the greater the turbulence of the cleaning water, and the thinner the cleaning water becomes. We empirically believe that the turbulence of the washing water becomes large from the time when the average air suction amount becomes 1.0 (L / min), and that the turbulence of the washing water becomes remarkable when it exceeds that. The repetition of this thin wash water,
This causes high and low speed repetition of the washing water injected from the throat portion, and finally, the repetition of the difference in speed appears as repetition of the density of the washing water. The washing water that repeats such sparse and dense gives a full feeling to the human body particularly in a dense part. In addition, since the repetition of the density is too fast for the human body to perceive, the human body always feels as if the washing water is colliding in a dense state. Therefore, the human body can enjoy a washing with a feeling of flapping together with the washing with the stimulating feeling.

According to a fifteenth aspect of the present invention, the throat portion is arranged on the same axis as the orifice portion and the outlet is open to the atmosphere. Features.

According to the human body cleaning device of the present invention, since the throat portion and the orifice portion are arranged on the same axis, it is possible to work from the same direction in the assembling process and the inspection process after the assembling. It is advantageous in terms of manufacturing, inspection, etc., and is excellent in mass productivity.

[0034] A sixteenth aspect of the present invention is the human body local cleaning apparatus according to the eleventh to fifteenth aspects, further comprising a cleaning water swirling section for rotating the cleaning water supplied to the orifice section around the locus as a center axis. And

According to the human body local cleaning device of the present invention, the supplied washing water is swirled by the washing water swirling section. The swirled washing water passes through the orifice portion and the throat portion and is diffused and sprayed in a conical shape. Therefore,
The area of the washing water colliding with the local part is increased, and the human body can enjoy a more pleasing washing.

A seventeenth aspect of the present invention is the human body local cleaning apparatus according to any one of the eleventh to sixteenth aspects, further comprising a variable portion for varying an amount of air taken in from the air intake.

According to the apparatus for cleaning a local part of a human body according to the seventeenth aspect, the amount of air taken in from the air inlet is changed by the variable part. When the amount of air taken in varies,
The washing water has a large degree of turbulence and a large difference in density. Therefore, the human body can enjoy a more irritating wash.

[0038] According to an eighteenth aspect, in the human body local cleaning apparatus according to the seventeenth aspect, the variable section varies the amount of air taken in from the air inlet at a predetermined cycle.

According to the apparatus for cleaning a human body part according to the eighteenth aspect, the amount of air taken in from the air inlet fluctuates at a predetermined cycle by the variable section, so that the turbulence of the cleaning water occurs periodically. Therefore, the density of the washing water becomes periodic, and the human body can stably enjoy the irritating washing.

A ninth aspect of the present invention is the apparatus for cleaning a human body part according to any one of the eleventh to eighteenth aspects, further comprising an orifice rotating section for rotating the orifice section around the locus as a central axis.

According to the nineteenth aspect of the present invention, the orifice rotating section rotates the orifice section around the locus as a center axis. When the orifice portion rotates about the locus as the center axis, the washing water is jetted in a conical shape. Therefore, the area of the washing water colliding with the local part increases, and the human body can enjoy a more pleasing washing.

According to a twentieth aspect, in the human body local cleaning apparatus according to any one of the eleventh to nineteenth aspects, a cleaning water pressure varying portion for varying the pressure of the cleaning water supplied to the orifice portion at a predetermined cycle is provided. And

According to the twentieth aspect of the present invention, the pressure of the washing water supplied to the orifice portion by the washing water pressure varying portion varies at a predetermined cycle. Therefore, the cleaning water to be injected is disturbed by the forced fluctuation by the cleaning water pressure fluctuation part in addition to the natural fluctuation at the orifice part and the throat part. Therefore, the human body can enjoy a more irritating wash.

[0044]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view of a human body local cleaning nozzle showing one embodiment of the present invention, FIG. 2 is a sectional view of a tip of the human body local cleaning nozzle, and 8 is a water supply to which cleaning water is supplied. The passage 10 is a water supply chamber for changing the course of the washing water supplied from the water supply passage 8 to the orifice portion 12, the orifice portion 12 for increasing the flow rate of the washing water, and the air intake 13 for sucking air. The entrance, 15 is a throat part.

[0046] FIG. 3, the water supply amount Q _W of the washing water 0.9 (L
/ Min), the sectional area S1 of the orifice portion is 1.3 mm ^{2 ,}
When the distance L1 between the outlet of the orifice portion and the inlet of the throat portion is 2.0 mm, and the length L2 of the throat portion is 6.0 mm, the area ratio S2 of the sectional area S1 of the orifice portion and the sectional area S2 of the throat portion. / and S1, shows the relationship between the air suction amount Q _a. Thus, in this embodiment, the value of S2 / S1 is busy air suction amount Q _A 2.7 to
4.4 (Specifically, the cross-sectional area S2 of the throat portion is 3.5
To 5.7 mm ² ).

[0047] FIG. 4, the water supply amount Q _W of the washing water 0.9 (L
/ Min), the sectional area S1 of the orifice portion is 1.3 mm ^{2 ,}
In the case of 4.2 mm ² cross-sectional area S2 of the throat portion, the throat portion of the length L2 was 6.0 mm, the distance L1 between the inlet of the outlet and the throat portion of the orifice portion, the relationship between the air suction amount Q _A It is shown. Thus, in this embodiment, the value of L1 is busy air suction amount Q _A 2.0 to
The range is set to satisfy the condition of 4.0 mm.

[0048] FIG. 5, the water supply amount Q _W of the washing water 0.9 (L
/ Min), the sectional area S1 of the orifice portion is 1.3 mm ^{2 ,}
4.2 mm ² cross-sectional area S2 of the throat portion, in the case where the distance L1 between the inlet of the outlet and the throat portion of the orifice portion and 2.0 mm, the length L2 of the throat portion, the relationship between the air suction amount Q _A It is shown. Thus, in this embodiment, the value of L2 is busy air suction amount Q _A 2.0 to
The range is set to satisfy the condition of 10.0 mm.

The throat section 15 is provided with the orifice section 1
It is arranged on trajectories X and Y from 2 to an anus a or a video b. In the embodiment shown in FIG. 2, the orifice portion 12 and the throat portion 15 are arranged on the same axis.

FIGS. 6A and 6B are explanatory views for explaining the arrangement of the water supply channel 8 and the water supply chamber 10, as viewed from the direction of the anus a or the bidet b in FIG. . 3A, the water supply channel 8 is connected toward the center of the water supply chamber 10, and therefore, the washing water supplied from the water supply channel 8 causes the orifice portion 12 to move along the trajectory X or Y.
Head for.

On the other hand, FIG. 6B shows that the water supply passage 8 is
0 (that is, the water supply channel 8 and the water supply chamber 10 constitute a cleaning water swirling section), the cleaning water supplied from the water supply channel 8 moves with respect to the trajectory X or Y. Turns toward the orifice section 12. The swirled washing water passes through the orifice section 12 and the throat section 15,
It is sprayed in a conical manner. Therefore, the area of the washing water colliding with the local part increases, and the human body can enjoy a more pleasing washing.

Next, the operation and effect of this embodiment will be described. When a water pressure is applied upstream of the orifice portion 12, the washing water (flow velocity of about 12 m / s) injected from the outlet of the orifice portion 12 collides with the human body local part with the injected water pressure without any obstacle. That is, there is no energy loss (ie, no deceleration of the washing water). Therefore,
The human body can enjoy a stimulating wash.

When the washing water is injected from the outlet of the orifice section 12, the area around the orifice section 12 becomes negative pressure, so that air is sucked in (the so-called ejector effect). The air sucked by this ejector effect is
The surface of the washing water jetted from the outlet of the orifice portion 12 is disturbed, and the washing water jetted from the throat portion 15 is made thinner or thicker depending on the degree of the disorder. The repetition of the thinning of the washing water causes high-speed and low-speed repetition of the washing water jetted from the throat portion, and the repetition of the difference in speed appears as repetition of the density of the jet. The washing water that repeats such sparseness and denseness gives a sufficient feeling to a human body particularly in a dense portion. Moreover, since the repetition of the density is so fast that the human body cannot react, the human body always feels as if the washing water is colliding in a dense state. Therefore, the human body can enjoy the irritating cleaning as well as the irritating cleaning.

FIG. 7 shows a water circuit of a human body part cleaning apparatus provided with the human body part cleaning nozzle of FIG. From the water source side (upstream side), 20 is a water supply connection portion, 22 is a check valve for preventing backflow, 24 is a strainer for removing foreign matter in the supplied washing water, and 26 is a downstream line regardless of fluctuations in the water supply pressure. Pressure regulating valve for maintaining a constant pressure, 30 is a main flow path solenoid valve, 32
Is a body cleaning electromagnetic valve, 34 is a relief valve for suppressing a rise in downstream pressure when the pressure rises, and 36 is a hot water storage type heat exchanger capable of storing 1.1 L of hot water for heating the supplied cleaning water. , 38 is a vacuum breaking valve, 40 is a flow regulating valve (throttle valve), 42 is a switching valve, and 44 is a telescopic nozzle body provided with the human body local cleaning nozzle of FIG. 1 (FIG.
FIG. 6 (a) is used for anal cleaning, and FIG. 6 (b) is used for bidet cleaning).
46 is a nozzle expansion / contraction drive motor.

Here, the flow regulating valve (throttle valve) 40 and the switching valve 42 are separate blocks for the sake of explanation.
The flow control switching valves 40 and 42 may be integrally formed in the following description. In this case, the flow control switching valves 40 and 42 have 3
The valve has two outflow passages, and the built-in valve has a configuration in which the communication area between the inflow passage and the outflow passage can be selectively changed and water can be stopped by the rotation angle. The valve is rotatable by the driving force of the stepping motor.

FIG. 8 is an explanatory diagram for explaining the expansion and contraction state of the nozzle body 44. In FIG. 8, the nozzle body 44 in the housed state is shown by a solid line, and the nozzle body 44 in the extended state is shown by a broken line. Further, a and b are washing positions of an anus and a bidet which are local parts of a human body, respectively, and A and B are extending positions of a nozzle body for spraying washing water to the anus a and a bidet b, respectively. , Y indicate trajectories connecting the orifice portion with the anus a and the bidet b, respectively.

In FIG. 8, as indicated by arrows,
By reciprocating the nozzle body 44 with a small stroke at the extended positions A and B, the cleaning range of the local area can be expanded, and at the same time, the position of the cleaning water that collides with the local area can be changed to enjoy a stimulating cleaning. be able to.

The cycle of the reciprocating movement of the nozzle body 44 in a minute stroke can be arbitrarily set or changed. , Nozzle body 44
Is disturbed by forced fluctuations due to the reciprocating movement of. Therefore, the human body can enjoy a more irritating wash.

With reference to the timing chart shown in FIG. 9, the operation of the parts constituting the water circuit of the human body local cleaning apparatus until the cleaning water is injected to the human body in the above configuration will be described.

First, in the standby state, the sitting switch (seating switch), the deodorizing / washing SW (washing switch), the main passage solenoid valve 30 and the body washing solenoid valve 32 are in the OFF state (non-operating state), and the nozzle body 44 is in the OFF state. Indicates the storage state, flow control switching valve 4
Numerals 0 and 42 are located at positions (= SC) where the inflow path and the three outflow paths are all communicated.

In the standby state, when the human body sits on the toilet seat (not shown), the seating SW (seating switch) is turned on, the interlock of the human body local cleaning function is released, and at the same time the deodorizing function (not shown) is activated. It is in the ON state (operating state). Next, when an assembling switch (not shown) as a request to inject the washing water to the anus is operated, the main flow path solenoid valve 30 is turned on (water channel open state), and the washing water is supplied from the nozzle body 44 in the housed state. Is injected. The jetted cleaning water is reflected by the reflection plate 45 disposed on the opposite side to clean the nozzle body 44 (= pre-cleaning). After the pre-cleaning, the pressure trapped in the heat exchanger 38 is released (= pressure release). After depressurization, the flow control switching valves 40 and 42 move to the water stop position (= flow control movement). After the flow control movement, the nozzle body 44 extends. At this time, the body cleaning solenoid valve 32 is turned on (water channel open state) to clean the surface of the nozzle body 44 being extended (= extending (body cleaning). )).

After the extension (torso cleaning), the main flow path solenoid valve 30 is turned on and the opening of the water channel by the flow control switching valves 40 and 42 is gradually advanced in order to actually clean the local part of the human body (=).
Soft start). After the soft start, perform local cleaning using the body's favorite water force (= main cleaning). The strength of the jetted washing water can be changed by the flow control switching valves 40 and 42, but the strongest (maximum flow rate) is 1 L / m.
in. Therefore, hot water can be continuously sprayed from the human body local cleaning nozzle for 60 seconds or more.

When a stop switch (not shown) as a request to stop the washing water is operated, the main flow path solenoid valve 30 is turned off.
A state (water channel closed state) is reached, and the injection of the washing water is stopped. At this time, the nozzle body 44 and the flow control switching valves 40 and 42 are kept as they are, and the pressure trapped in the heat exchanger 36 is released. (= Pressure relief). After depressurization, flow control switching valve 4
0 and 42 are moved to the water stop position (= flow control movement). After the flow adjustment movement is completed, the nozzle body 44 is stored in the storage position, and at the same time, the body cleaning solenoid valve 32 is turned on, and the nozzle body 4 is turned on.
The surface of No. 4 is washed (= storage (body washing)).

After storage (body washing), the flow control switching valves 40, 4
2 is moved to the SC position, the main flow path solenoid valve 30 is turned on (water channel open state), and the nozzle body 4 is in the housed state.
Cleaning water is injected from 4. The jetted washing water is reflected by the reflecting plate 45 disposed on the opposite side to wash the nozzle body 44 (= post-washing).

After the post-cleaning, the flow control switching valves 40 and 42 are moved to the origin position (= origin adjustment).
0 and 42 are moved to the SC position (= flow control movement). Here, when the person leaves, the seating SW (seating switch) is turned off.
The state becomes F, and the deodorizing function stops.

FIG. 10 shows an embodiment corresponding to claims 7, 8, 17 and 18, which has a variable section 18 for varying the amount of air taken in from the air intake port 13. The variable section 18 includes a motor, and opens and closes the air intake 13 at a high speed (preferably about 50 Hz) by the motor, and variably controls the amount of air taken in from the air intake 13.

According to this embodiment, the opening / closing drive of the variable section 18 changes the amount of air taken in from the air intake 13. When the amount of air taken in varies, the degree of turbulence of the cleaning water increases, and a large difference in density occurs. Therefore, the human body can enjoy a more irritating wash.

The variable period of the air amount by the variable section 18 can be set and changed arbitrarily, and the washing water to be injected is not limited to natural fluctuations at the orifice section and the throat section.
Disturbed by the forced fluctuation by the variable unit 18. Therefore, the human body can enjoy a more irritating wash.

FIG. 11 shows an embodiment corresponding to the ninth and nineteenth aspects, wherein an orifice rotating part 19 for rotating the orifice part 12 about the locus X or Y as a center axis is provided. The orifice rotating section 19 includes a motor, and the motor rotates the nozzle head about the locus as a central axis, and rotates the outlet of the orifice section 12 provided on the locus about the locus as a central axis.

According to this embodiment, the orifice rotating unit 1
By means of 9, the orifice portion 12 is rotated around the locus X or Y as a central axis. When the orifice portion 12 rotates about the locus as the center axis, the washing water discharged from the orifice portion 12 is sprayed in a conical manner. Therefore, the area of the washing water colliding with the local part increases, and the human body can enjoy a more pleasing washing.

The rotation cycle of the orifice section 12 by the orifice rotating section 19 can be arbitrarily set or changed. The cleaning water to be injected is not only changed naturally by the orifice section and the throat section, but also by the orifice rotating section. 19 disturbed by forced fluctuations. Therefore, the human body can enjoy a more irritating wash.

FIG. 12 shows an embodiment corresponding to the tenth and twentieth aspects of the present invention, which is provided with a washing water pressure varying part 48 for varying the pressure of the washing water supplied to the orifice part 12 at a predetermined cycle. is there. The washing water pressure fluctuation unit 48 includes a known plunger pump constituted by an electromagnetic coil and a plunger, and a high pressure is periodically applied to the washing water by driving the plunger pump.

According to this embodiment, the cleaning water pressure fluctuation unit 4
By virtue of 8, the pressure of the washing water supplied to the orifice portion 12 fluctuates in a predetermined cycle. Therefore, in addition to the natural fluctuation at the orifice and throat,
It is disturbed by the forced fluctuation by the cleaning water pressure fluctuation part 48. Therefore, the human body can enjoy a more irritating wash.

[Brief description of the drawings]

FIG. 1 shows a nozzle portion of a human body local cleaning apparatus according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of the tip of a nozzle portion of the human body local cleaning device.

[3] and the area ratio S2 / S1 of the cross-sectional area S1 of the orifice portion and the throat portion of the cross-sectional area S2, shows the relationship between the air suction amount Q _A

[4] The distance L1 between the inlet of the outlet and the throat portion of the orifice part, shows the relationship between the air suction amount Q _A

[5] The length L2 of the throat portion, shows the relationship between the air suction amount Q _A

6A is a diagram in which the water supply channel 8 is connected toward the center of the water supply chamber 10, and FIG. 6B is a diagram in which the water supply channel 8 is braided and connected from the center of the water supply chamber 10 (that is, the water supply channel 8). And the water supply chamber 10 constitute a washing water swirling section)

FIG. 7 is a water circuit of a human body part cleaning apparatus provided with the human body part cleaning nozzle of FIG. 1;

FIG. 8 is an explanatory diagram for explaining the expansion and contraction state of the nozzle body 44;

FIG. 9 is a timing chart showing the operation of the parts constituting the water circuit of the human body local cleaning apparatus.

FIG. 10 is an embodiment corresponding to claims 7, 8, 17, and 18;

FIG. 11 is an embodiment corresponding to claims 9 and 19;

FIG. 12 is an embodiment corresponding to claims 10 and 20;

FIG. 13 is a sectional view of a conventional human body local cleaning nozzle.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... this nozzle, 2 ... 1st nozzle, 3 ... nozzle body, 4 ...
Cavity, 5 ... Injection port, 6 ... Injection port, 7 ... Air intake, 8 ...
Water supply channel, 12: orifice section, 13: air suction section, 15
... Throat part, 18 Variable part, 19 ... Orifice rotating part, 20 ... Water supply connection part, 22 ... Check valve, 24 ... Strainer, 26 ... Pressure regulating valve, 30 ... Main flow path solenoid valve, 32 ... Body cleaning solenoid valve 34 ... Relief valve, 36 ... Heat exchanger, 38 ... Vacuum release valve, 40 ... Flow control valve (throttle valve), 42 ... Switching valve, 4
4 nozzle body, 45 reflector plate 46 nozzle expansion / contraction drive motor, 48 washing water pressure fluctuation unit

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Ryosuke Hayashi 2-1-1 Nakajima, Kokurakita-ku, Kitakyushu-shi, Fukuoka F-term (reference) 2D038 JA03 JA05 JA05 JH12 KA03

Claims (20)

[Claims] 1. An orifice part provided with a water supply channel and injecting washing water to a human body part, comprising an orifice formed in the water supply path and having an outlet directed toward the human body part. An air inlet provided around the portion, a throat portion provided on a locus connecting the outlet of the orifice portion and the human body part, and further, a cross-sectional area S1 of the orifice portion and a throat portion Cross section S
2, the area ratio S2 / S1 is 2.7 to 4.4, the distance L between the outlet of the orifice portion and the inlet of the throat portion.
1. A human body local cleaning nozzle, wherein 1 is 2.0 to 4.0 mm. 2. The human body local cleaning nozzle according to claim 1, wherein the area ratio S2 / S1 is 3.2 to 3.8. 3. The nozzle according to claim 1, wherein a sectional area S1 of the orifice section is 1.3 mm ² , and a sectional area S2 of the throat section is 3.5 to 5.7 mm ^2.
A cleaning nozzle for a human body part, characterized in that: 4. The human body cleaning nozzle according to claim 3, wherein a cross-sectional area S2 of the throat portion is set to 4.2 to 4.9 mm ^2.
A cleaning nozzle for a human body part, characterized in that: 5. The human body part cleaning nozzle according to claim 1, wherein the throat portion is arranged on the same axis as the orifice portion, and an outlet is open to the atmosphere. Local body cleaning nozzle. 6. The human body local cleaning nozzle according to claim 1, further comprising: a cleaning water swirling portion for rotating the cleaning water supplied to the orifice portion around the locus as a center axis. Local cleaning nozzle. 7. The human body part cleaning nozzle according to claim 1, further comprising a variable portion that changes an amount of air taken in from the air intake. 8. The human body local cleaning nozzle according to claim 7, wherein the variable section changes the amount of air taken in from the air intake at a predetermined cycle. 9. The human body part cleaning nozzle according to claim 1, further comprising an orifice rotating part for rotating the orifice part around the locus as a center axis. 10. The human body local cleaning nozzle according to claim 1, further comprising a cleaning water pressure varying unit that varies the pressure of the cleaning water supplied to the orifice unit at a predetermined cycle. Local cleaning nozzle. 11. An apparatus for cleaning a human body part provided with a water supply channel and injecting washing water to a human body part, an orifice part formed in the water supply path and having an outlet directed to the human body part part; An air inlet provided around the portion, a throat portion provided on a locus connecting the outlet of the orifice portion and the human body part, and further, a cross-sectional area S1 of the orifice portion and a throat portion Cross section S
2, the area ratio S2 / S1 is 2.7 to 4.4, and the distance L between the outlet of the orifice portion and the inlet of the throat portion.
1 is 2.0 to 4.0 mm. A human body local cleaning device provided with a human body local cleaning nozzle, wherein 12. The human body local cleaning device according to claim 11, wherein the area ratio S2 / S1 is set to 3.2 to 3.8. 13. The apparatus according to claim 11, wherein a sectional area S1 of the orifice section is 1.3 mm ² , and a sectional area S2 of the throat section is 3.5 to 5.7 mm ^2.
A human body part cleaning device, characterized in that: 14. The apparatus according to claim 13, wherein a cross-sectional area S2 of the throat portion is 4.2 to 4.9 mm ^2.
A human body part cleaning device, characterized in that: 15. The apparatus according to claim 11, wherein the throat is disposed on the same axis as the orifice, and the outlet is open to the atmosphere. Human body local cleaning device. 16. The human body local cleaning apparatus according to claim 11, further comprising a cleaning water swirling section for rotating the cleaning water supplied to the orifice section around the locus as a center axis. Local cleaning equipment. 17. The human body part cleaning apparatus according to claim 11, further comprising a variable part that changes an amount of air taken in from the air intake. 18. The human body local cleaning device according to claim 17, wherein the variable unit changes the amount of air taken in from the air intake at a predetermined cycle. 19. The human body part cleaning apparatus according to claim 11, further comprising an orifice rotating part that rotates the orifice part around the locus as a center axis. 20. The human body local cleaning apparatus according to claim 11, further comprising a cleaning water pressure varying unit that varies a pressure of the cleaning water supplied to the orifice unit at a predetermined cycle. Local cleaning equipment.